Clock



FIG. 1 is a perspective view of one embodiment of the clock.

FIG. 2 is a front view of the clock.

FIG. 3 is a back view of the clock.

FIG. 4 is a side view of the clock.

FIG. 5 is a side view of the clock.

FIG. 6 is a top view of the clock; and,

FIG. 7 is a bottom view of the clock.

The broken line showing of portions of the clock is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a clock, as shown and described. 